无法进入低功耗模式STM8L052C6

嗨，
我觉得我已经阅读了一百万次参考手册，但我无法弄清楚如何让我的项目进入低功耗模式。
我正在驾驶一个带有计数器的液晶显示屏。我有两个外部开关来唤醒上下计数。我正在使用timer4来有希望定期醒来并做一些工作。
我需要两个低功耗模式，一个打开LCD，它只是唤醒处理按钮按下或timer4超时。
另一个低功耗模式将关闭LCD，仅在按下按钮时唤醒。它需要唤醒而不能复位，因为我不想丢失LCD的数量。
为了省电，我正在使用LSI时钟。
代码如下。任何想法将不胜感激。我是STM8的新手
主要（）

{
CLK_CKDIVR = 0b0; //将时钟除以1
CLK_SWR = 0x02; //系统时钟是LSI（38kHz）
CLK_SWCR | = 0x2; //告诉系统将时钟切换到SWR中定义的时钟
而（CLK_SWCR＆amp; 1）;
CLK_ICKCR＆amp; = 0b11111110; // HSI关闭
CFG_GCR | = 0b10; //在WFI / HALT之后未恢复主要上下文

lcd_init（）; //首先这样做还是真的很慢PB_DDR = 0; //将引脚设置为输入。默认


//输入拉起来
PA_CR1 = 0x8C;
PB_CR1 = 0xFF;
PC_CR1 = 0xF7;
PD_CR1 = 0x3C;
PE_CR1 = 0xB6;
PE_CR1 = 0x01;

PB_CR2 = 0b110; // PB1和PB2中断使能
EXTI_CR1 = 0b101000; //端口1和2仅下降沿中断
CLK_PCKENR1 | = 0x04; //启用CLK到Timer4
TIM4_CR1 = 0b101; //启用Timer4
TIM4_IER = 1; // Timer4中断使能
TIM4_PSCR = 1; // CLK / 2（8）所以CLK为16而（CLK_SWCR＆amp; 1）;


{_asm（'rim  n'）;} //启用中断

而（1）{
if（readyToSleep == 1）{
readyToSleep = 0;
CLK_PCKENR1 = 0; //禁用时钟到perfs
CLK_PCKENR2 = 0;
CLK_PCKENR3 = 0;
EXTI_SR1 = 0; //清除中断
EXTI_SR2 = 0;
TIM4_SR1 = 0;
{_asm（ 'HALT  n'）;}
}
其他{
{_asm（ 'WFE  n'）;}
{_asm（'JRA next  n'）;}
{_asm（ '下： N'）;}
// {_ ASM（ 'WFI  n'）;}
}
}
}
#halt #sleep #wfe＃stm8l052c6 #wfi #lcd #low-power＃stm8



以下为原文




Hi,
I feel like I've been through the reference manual a million times, but I cant figure out how to get my project into low power mode.
I'm driving a LCD screen with a counter on it. I have two external switches to wake up count up and down. And I'm using timer4 to hopefully wake up periodically and do some work.
I need two low power modes, one with the LCD on and it just wakes up to handle a button press or a timer4 timeout.
The other low power mode will turn off the LCD and will only wake up on a button press. It needs to wake up and not reset because I don't want to lose count on the LCD.
To save power I'm running off LSI clock.  
Code below. Any ideas would be greatly appreciated. I'm new to STM8
main()

{  
  CLK_CKDIVR = 0b0; //Div clock by 1
  CLK_SWR = 0x02; //Sys clock is LSI (38kHz)
  CLK_SWCR |= 0x2; //Tell system to switch clocks to one defined in SWR
  while(CLK_SWCR & 1);
  CLK_ICKCR &= 0b11111110; //HSI Off
  CFG_GCR |= 0b10; //main context not restored after WFI/HALT
  
  lcd_init(); //Do this first or its really slow.  PB_DDR = 0; //Set pins as Inputs. By default

  
  //INPUTS PULLED UP
  PA_CR1 = 0x8C;  
  PB_CR1 = 0xFF;
  PC_CR1 = 0xF7;
  PD_CR1 = 0x3C;
  PE_CR1 = 0xB6;
  PE_CR1 = 0x01;
  
  PB_CR2 = 0b110; //PB1 and PB2 interrupt enable
  EXTI_CR1 = 0b101000; //Port1 and 2 to falling edge only interrupt
  CLK_PCKENR1 |= 0x04; //Enable CLK to Timer4
  TIM4_CR1 = 0b101; //Enable Timer4
  TIM4_IER = 1; //Timer4 interrupt enable
  TIM4_PSCR = 1; //CLK/2(8) so CLK div 16  while(CLK_SWCR & 1);

  
  {_asm('rimn');} //enable interrupts
  
  while (1){
    if (readyToSleep == 1){
      readyToSleep = 0;
      CLK_PCKENR1 = 0; //Disable clocks to perfs
      CLK_PCKENR2 = 0;
      CLK_PCKENR3 = 0;
      EXTI_SR1 = 0; //Clear interrupts
      EXTI_SR2 = 0;
      TIM4_SR1 = 0;
      {_asm('HALTn');}
    }
    else{
      {_asm('WFEn');}
      {_asm('JRA nextn');}
      {_asm('next:n');}
      //{_asm('WFIn');}
    }
  }
}
#halt #sleep #wfe #stm8l052c6 #wfi #lcd #low-power #stm8